The application of behavioural analysis models to impact assessment is one illustration of the types of tools Gamos uses. For example, the Theory of Reasoned Action (TORA) is best understood as a series of hypotheses linking outcome beliefs, social referents, attitudes, intention and behaviour. It has been used widely in the North. Gamos has been one a few pioneers who have applied the TORA to developmental and extension activities. Unlike commonly used participatory processes the TORA methodology that we use brings to light 'why' people do things, allowing educational messages to be targeted accordingly. In the last four years, Gamos has applied this to a number of development processes and activities. It has proven to be applicable cross culturally and has shown clear effective benefits to programmes.